Here's an explanation of this problem. I'll send another email with instructions for users.
By default, the kernel is loaded to 0x0400000 and the ramdisk exactly 2 MB behind that location. For some reason, it fails with stretch. However, changing the load address to 0x0500000 or 0x0600000 makes it work. I don't think it's clear why since the ramdisk is still loaded exactly 2 MB after the kernel. The load address is in two u-boot configs: loadAddr and bootcmd. We adjust them to 0x0600000. This is something the user has to do manually. I couldn't find a way to workaround the problem by changing the installer or flash-kernel. At the moment, debian-installer and mv2120-recovery-image use 0x01000000 as the load address. This means the combined kernel+ramdisk can only be 10 MB. Let's change 0x01000000 to 0x01600000 to allow for a larger ramdisk. Note that flash-kernel already uses 0x01600000 -- Martin Michlmayr http://www.cyrius.com/
